having issues with my phantoms, havent flown them in quite a wile with a couple being damaged in diferent ways, been borrowing parts off other ones and now even the ones that use to fly without a gimbal are flashing yellow quickly, anyone know what it mean.. i get connection between the controller and if i lift the drone it says its doing things on the screen but just cant do anything else... flashing yellow is usualy controller but the controller is connected just fine.. i remember all this coming about after i did a firmware update earlier in the year.. not i cant even get it to read a memory card..... realy annoying having 4 phantoms just sitting here doing nothing